A12 Chelmsford to A120 widening Third round of forums 25 November 7 - - PowerPoint PPT Presentation

A12 Chelmsford to A120 widening

Third round of forums 25 November – 7 December 2016

The Project team:

Shah Hussain– Project Manager (Highways England) Patrick de Feu – Project Manager (Jacobs) David Orr-Ewing – Principal Engagement Manager (Jacobs) Jennifer Goddard – Business Manager (Highways England) Philippa Garden – Engagement Lead (Jacobs)

Agenda

• Introduction
• Sifting for the fictional town of Avalon
• Sifting for the A12
• Traffic modelling
• AOB – forum feedback

Sifting for fictional town

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Fictional town of Avalon

Avalon is situated on the Arthurian motorway network. The section running 2 km either side of the town is almost 50 years old. The town has a rich history with an historic battleground, remembrance park of Camlann, Monmouth Area of Outstanding Natural beauty (AONB) and Nyneve Lake all near by. The economy is largely dependent on tourism and

• agriculture. Both of which depend on the local waterways.

Map of fictional Avalon

6

Stages of sifting

identify issues & objectives create long list

• f options to

achieve

• bjectives

'shortlist

• ptions'

select options for consultation

Identification of problems and

• bjectives

Avalon’s issues:

• Long journey times to the

motorway

• Large farming industry -

businesses are finding cost of transport are affecting their growth.

• Local roads frequently flood
• No road improvements for 50

years 8 How?

• Desk based study of national and

local policies and priorities

• Identification of study area
• Analysis of current situation
• What the future looks like

This work produces.

• Key objectives based on analysis and

engagement with statutory bodies.

Generating options

• Avalon’s Town Council have

previously commissioned route

• ptions
• Lord Pendragon, a major

landowner and farmer put forward a route last year

• A number of local specialists

from the council and government organisations were engaged to generate route options

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This work generates 20+ options

10

The Options Sifting Process

• ‘Sifting’ is the evaluation of many different
• ptions.
• Key is that the options meet the defined
• bjectives and a strategic fit.
• Department for Transport Early Assessment

and Sifting Tool (‘EAST’) is used to sift

• ptions.

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• Routes that didn’t meet strategic
• bjectives
• Engineers and environmentalists

look at options to identify the best ‘route’ in each avoiding ‘environmental showstoppers’

• This process identifies a short list of

feasible better performing options

Shortlisting – part one

What to look at…

• Route problems
• Study objectives
• Scheme deliverability,

feasibility and affordability

Shortlisting - part two

Apply the Treasury’s Case Model 1. Strategic case 2. Economic case 3. Management case 4. Financial case 5. Commercial case Review original objectives and enhance and apply 12

13

Fictional town of Avalon - viable

• ptions for consultation Route generation and

sifting is detailed in an Options Appraisal Report.

What happens next

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Analyse the responses received and then undertake any additional technical work required Report the feedback received to the decision maker Should decision maker believe there is a compelling case for the scheme and a suitable option, a preferred route would be announced Further engagement with communities, land owners and stakeholders as the preferred route is developed and more technical work takes place, including environmental A statutory public consultation on the Preferred Route Further technical work and engagement, then submit an application for a Development Consent Order (Planning Application) Consent Order decision received If successful, construction would begin

Sifting for the A12

Stages of sifting

identify issues & objectives create long list

• f options to

achieve

• bjectives

'shortlist

• ptions'

select options for consultation

Identifying issues and objectives

Issues Congestion Safety Resilience Reliability Substandard junctions Poor provision for non-motorised users Objectives Improving user satisfaction Making the network safer Supporting the smooth flow of traffic Encouraging economic growth Delivering better environmental

• utcomes

Helping cyclists, walkers and other vulnerable road users of the network

Long list of options

Using existing reports, technical workshops and objectives, a long list of options was created:

• 5 options, including:
• Implement high occupancy vehicle lanes
• Upgrade existing rail routes and branch lines
• Implement Bus Rapid Transit

Public transport

• 3 options, including:
• Implement safety measures such as “keep apart” chevrons and ban HGV
• vertaking
• Remove and divert at grade rights of way and /or improve at grade crossings

Collision reduction and incident management

• 15 options, including:
• Providing a new parallel offline route from junction 19-25
• Review and rationalise junctions
• Road repairs

Highways improvement

• ptions

Shortlisting of options - part one

Long list shortened by applying objectives. The following were eliminated as they would not tackle all problems that need to be addressed:

• Public transport options
• Collision reduction & incident management measures
• A number of highways improvement options

Shortlisting of options - part two

We then asked the following of the six remaining options:

• Is it the right strategic fit?
• Does it show value for money?
• Is there a financial and commercial case?
• Can it be delivered?

This left 3 options

Enhanced objectives

We then undertook a review and enhanced and added to the initial objectives:

• Supporting economic growth
• A safe and serviceable network
• A more free flowing network
• An improved environment
• A more accessible and integrated network
• Customer satisfaction

What happens next

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Analyse the responses received and then undertake any additional technical work required Report the feedback received to the decision maker Should decision maker believe there is a compelling case for the scheme and a suitable option, a preferred route would be announced Further engagement with communities, land owners and stakeholders as the preferred route is developed and more technical work takes place, including environmental A statutory public consultation on the Preferred Route Further technical work and engagement, then submit an application for a Development Consent Order (Planning Application) Consent Order decision received If successful, construction would begin

Traffic Modelling

Traffic modelling

Identify problems and

• bjectives for

an area Data Collection Development

• f 2016 traffic

model Development of future traffic growth models Scheme

• ption

assessment

Stage 1 Options identification Stage 0 Outline Strategy Current position

Data collection – existing vehicle movements

Between April and June 2016 we commissioned a large number of traffic surveys across the area. Other data sources used include:

• Highways England’s

journey time and traffic flow

• Traffic data from the

A120 study

• Mobile phone origin-

destination data

• Trafficmaster origin-

destination and journey time data

Colchester Chelmsford Witham Braintree

Existing traffic capacity and journey time

Up to 90,000 vehicles per day (two-way) Over 4,000 vehicles in each direction at the busiest locations

Existing flows are over 85% Capacity Existing flows are under 85% Capacity Existing flows are over 100% Capacity

J22

Junction 19 - 25 Free flow journey time - 15 mins Typical peak journey time - up to 25 mins

J19 J20a J20b J21 J23 J24 J25

Witham Hatfield Peverel Chelmsford

A120

Kelvedon

A130 B1019 B1018 B1024

Traffic Model

We are currently developing a new traffic model using the 2016 traffic data using computer software. The model reflects typical weekday ‘peak hour’ conditions. The model will allow us to study how traffic moves across the area, not just on the A12, but a much wider area. Forecast models allow us to see how traffic might change in the future on the A12 and on local roads (with and without the implementation of scheme

• ptions).

A12 A12 Witham

Colchester Braintree Chelmsford Brentwood

Understanding scheme benefits

The scheme will lead to significant improvements in traffic conditions throughout the wider area and not just on the scheme itself. We study this by developing a traffic growth ‘forecast’ model which tells us about traffic conditions in the future. Traffic modelling allows us to assess a number of different impacts and benefits across the entire study area including (but not limited to):

• Journey time savings
• Vehicle operating cost savings (lower fuel usage, reduced vehicle maintenance, etc.)
• Accident savings

These benefits can be turned into a monetary value then used to provide a “Benefit to Cost Ratio” (BCR) and subsequently estimate the Value for Money of the scheme. Any scheme must demonstrate Value for Money.

Any other business – forum feedback forms

Contact and more information:

Email: A12chelmsfordA120wide@highwaysengland.co.uk Website: www.highways.gov.uk/A12chelmsfordA120widening